New CO2 laser equipped with high-peak pulse power and high-speed drilling process

Hitoshi Hongu; Hidehiko Karasaki

doi:10.1117/12.46877

1 October 1991 New CO₂ laser equipped with high-peak pulse power and high-speed drilling process

Hitoshi Hongu, Hidehiko Karasaki

Proceedings Volume 1501, Advanced Laser Concepts and Applications; (1991) https://doi.org/10.1117/12.46877
Event: ECO4 (The Hague '91), 1991, The Hague, Netherlands

Abstract

The new C02 laser has been developed for the high speed drilling and cutting process for sheet metals up to 16 mm thickness, with low operational costs.The new C02 laser is equipped with the newly developed acoustic filter and solid-state inverter power supply that have the fol lowing features: (1) To keep high quality glow-discharge under the laser gas flow, the acoustic filter has been newly applied to prevent the ripple of the laser gas pressure.Thus it is able to reduce fluctuations of the laser pulse power to within 10%. (2) The solid-state inverter power supply has been developed to make possible high response glow-discharge power.That creates a high peak pulse power, where the height of the laser pulse power is more than 4000w as well as twice cw laser power. The high speed drilling process using the high peak pulse power makes possible a driffing time of 5 secat 16 mm thickness and less than 0.5 sec at 9 mm thickness for mild steel.

Citation Download Citation

Hitoshi Hongu and Hidehiko Karasaki "New CO₂ laser equipped with high-peak pulse power and high-speed drilling process", Proc. SPIE 1501, Advanced Laser Concepts and Applications, (1 October 1991); https://doi.org/10.1117/12.46877

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